
Surf Forecasts:
Kohala Lighthouse surf forecast from 6 Sep 2026:
- Best quality surf: Monday 7 Sep, 11PM (local time) - 7ft (2.1m), 12s period, ENE swell with cross-offshore winds.
- Most powerful swell: Sunday 6 Sep, 2PM (local time) - 8ft (2.5m), 12s period, ENE swell with 2,055 kJ wave energy.
- Next surfable swell (1★+): Monday 7 Sep, 11PM (local time) - 7ft (2.1m), 12s period with ENE swell.
Best Forecast Surf Conditions for Kohala Lighthouse this week:
The surf forecast for Kohala Lighthouse over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 07) at 11PM. The primary swell is predicted to be 2.1m and 12s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Kohala Lighthouse in the next 16 days are 2.5m 12s and forecast to arrive on Sunday (Sep 06) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 14s period and expected on Tuesday (Sep 08) at 2AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Mon 7th Sep) | 7ft (2.1m) 12s |
| Best Surf | 11PM (Mon 7th Sep) | 7ft (2.1m) 12s |
| Most Powerful | 2PM (Sun 6th Sep) | 8ft (2.5m) 12s |
Table - best surf conditions forecast for Kohala Lighthouse over the next 16 days.
The Lowdown
Right then, let’s have a look at what’s on offer for the Kohala Lighthouse (Big Island) area over the next couple of weeks. It’s a bit of a mixed bag, and you’re going to have to be patient. The first few days are a write-off – we’ve got a decent sized swell rolling in, around 7 ft to 8 ft from the ENE, but it’s all cross-shore wind and messy. The combined wave energy is seriously pumping, reading 1475 to 2023 (moderate to strong), but the quality just isn’t there. It’s blown out, lumpy, and the reports are all “marginal” which is surf-speak for “stay on the beach.” The water temp is a balmy 81°, which is pretty much spot on for this time of year.
The real window of opportunity, the standout by a long shot, is Tuesday the 8th of September. It’s not big, but it’s clean. We’ve got a drop in the swell to about 6 ft in the morning and 5 ft in the afternoon, still pushing from the NE. The wind goes totally glassy, swinging around to a light NW or ESE breeze at only 3 mph, which is a major positive. For a reef break like this that’s exposed to the north, that’s the best you’re going to get. The period is a solid 10 to 11 seconds, a nice groundswell, so the waves will have shape. The combined energy drops to a moderate 735 to 973. It’s an advanced spot and with scores of “good surf conditions” predicted, this is the one to circle on the calendar. The crowd factor says “sometimes,” so you might have a few others with the same idea, but it’ll be worth it.
After that Tuesday session, it starts to go downhill again. From Wednesday the 9th onwards, the onshore ENE winds come back with a vengeance, blowing 12 to 19 mph, and the surf quality plummets. We’re stuck in a pattern of poor surf conditions, with cross-shore and cross-onshore winds creating lumpy, choppy waves. The swell sticks around at 5 ft to 8 ft for a while, but with short periods dropping to 6 or 7 seconds, it’s just a windswell mess. The energy drops off to low to moderate readings (247 to 593) but it’s all texture and no quality. This run of poor conditions extends right through to the end of the outlook on the 20th of September. There are no other standouts in that second week – it’s a long gap of disappointment.
So to wrap it up: aim for Tuesday the 8th. That’s your best and really only clean shot at Kohala Lighthouse. The rest of the 16-day window is blown out and not worth chasing.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Sun morning, min 26°C on Sat afternoon). Winds decreasing (fresh winds from the E on Mon morning, calm by Mon night). | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Tue afternoon, min 24°C on Thu night). Winds increasing (calm on Tue afternoon, fresh winds from the ENE by Thu morning). | |||||||||||||||||||
Sat 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | ||||||||||||||||||||
Wave Height (m) Direction Period (s) | ENE 13 | ENE 13 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | NE 11 | W 11 | E 13 | ENE 8 | ENE 12 | ENE 12 | ENE 7 | ENE 7 | ENE 13 | ENE 12 | ENE 11 | ENE 11 |
Wave Graph | ||||||||||||||||||||
1989 | 1697 | 1794 | 1871 | 1347 | 1824 | 1522 | 1050 | 664 | 663 | 284 | 231 | 1051 | 694 | 197 | 197 | 838 | 539 | 846 | 505 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | glassy | glassy | glassy | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide | 10:44PM0.32m | 12:30PM0.85m | 00:13AM0.38m | 1:12PM0.89m | 1:05AM0.45m | 1:48PM0.89m | 1:50AM0.53m | 2:20PM0.88m | 2:30AM0.61m | 2:48PM0.83m | 3:09AM0.67m | 3:15PM0.77m | 3:48AM0.72m | |||||||
Low Tide | 8:01PM0.30m | 7:58PM0.26m | 5:43AM0.12m | 8:13PM0.22m | 6:42AM0.10m | 8:32PM0.19m | 7:32AM0.10m | 8:53PM0.16m | 8:18AM0.12m | 9:14PM0.13m | 9:02AM0.16m | 9:35PM0.11m | ||||||||
— | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | |
6:35 | — | — | 6:34 | — | — | 6:32 | — | — | 6:31 | — | — | 6:30 | — | — | 6:30 | — | — | 6:29 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 27 | 27 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 25 | 26 | 26 | 25 |
Feels °C | 25 | 26 | 26 | 26 | 25 | 24 | 25 | 31 | 31 | 32 | 31 | 26 | 26 | 25 | 24 | 24 | 23 | 25 | 25 | 23 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 11 | SW 11 | SW 13 | SW 13 | SW 14 | WSW 15 | ENE 12 | NE 11 | W 11 | W 10 | E 13 | W 7 | SW 8 | E 12 | ENE 11 | SSW 16 | NNE 8 | SSW 15 | NNE 6 |
51 | 61 | 77 | 163 | 196 | 373 | 818 | 1050 | 664 | 663 | 161 | 212 | 9 | 9 | 130 | 133 | 26 | 19 | 22 | 8 | |
Swell 2 Height (m) Direction Period (s) | NNE 10 | N 9 | NNE 11 | N 10 | N 10 | N 9 | N 15 | WSW 14 | WSW 12 | NE 10 | E 13 | W 8 | SW 7 | W 6 | SW 16 | WSW 10 | WSW 10 | SSW 16 | WSW 9 | SW 15 |
34 | 26 | 39 | 8 | 17 | 6 | 4 | 1144 | 694 | 415 | 284 | 33 | 9 | 3 | 42 | 9 | 9 | 25 | 7 | 35 | |
Swell 3 Height (m) Direction Period (s) | — | N 11 | — | — | — | N 11 | N 9 | E 14 | E 14 | E 14 | SW 8 | SW 8 | NW 11 | SW 13 | SW 8 | SW 18 | W 11 | WSW 9 | W 11 | WSW 8 |
— | 10 | — | — | — | 2 | 14 | 138 | 246 | 311 | 33 | 14 | 5 | 7 | 2 | 12 | 2 | 8 | 2 | 7 | |
Wind waves Height (m) Direction Period (s) | ENE 13 | ENE 13 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | — | — | — | ENE 8 | ENE 8 | ENE 12 | ENE 12 | ENE 7 | ENE 7 | ENE 13 | ENE 12 | ENE 11 | ENE 11 |
1989 | 1697 | 1794 | 1871 | 1347 | 1824 | 1522 | — | — | — | 222 | 231 | 1051 | 694 | 197 | 197 | 838 | 539 | 846 | 505 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 0 | 0 | 0 | 0 | 25 | 57 | 69 | 73 | 25 | 25 | 73 | 69 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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Information about the Kohala Lighthouse Surf forecast
The above surf forecast table for Kohala Lighthouse provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kohala Lighthouse can be found by selecting the local surf guide option on the grey menu. Our Kohala Lighthouse surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Kohala Lighthouse) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Kohala Lighthouse may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Kohala Lighthouse is 87 km (54 miles) from Kihei. If you plan a vacation in Big Island, look for hotels and other accommodation in Kihei. Kihei has rooms for a wide range of budgets as well as car hire and transport links.










